Take 1 large head of fresh cauliflower, remove stems and leaves, and chop the florets into chunks. Add to food processor and pulse until it looks like grain. Do not over-do pulse or you will puree it. (If you don't have a food processor, you can grate the whole head with a cheese grater). Place the riced cauliflower into a microwave safe bowl and microwave for 8 minutes. There is no need to add water, as the natural moisture in the cauliflower is enough to cook itself.

One large head should produce approximately 3 cups of riced cauliflower. The remainder can be used to make additional pizza crusts immediately, or can be stored in the refrigerator for up to one week.